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Finding the Fourth Proportional to 181,958.80, 272,938.20 and 165,629.20

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Solution

The fourth proportional to 181,958.80, 272,938.20 and 165,629.20 is: 248,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,958.80 : 272,938.20 = 165,629.20 : x
  2. Step 2: Convert to fraction form
    181,958.80/272,938.20 = 165,629.20/x
  3. Step 3: Cross multiply
    181,958.80x = 272,938.20 × 165,629.20
  4. Step 4: Simplify right side
    181,958.80x = 45,206,535,715.44
  5. Step 5: Solve for x
    x = 45,206,535,715.44/181,958.80
  6. Step 6: Final answer
    x = 248,443.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.